Who though?
USA, G4, SyFy, Oxygen, Chiller, Bravo, Ion, NBC, and A&E are all owned by Universal who WWE has an exclusivity deal with.
TNT won't carry wrestling again as long as AOL Time Warner has a say, neither will TBS.
The CW gave up SD when it was the highest rated show they had outside of Smallville and on a bad night, and they have cut every program that doesn't generate a women's audience (shockingly Supernatural and Smallville have/had large ones). Heck they didn't even keep Gilmore Girls, The Game, Girlfriends, All of Us, or 7th Heaven because their female viewership had dipped too far to their male counterparts, despite averaging more viewers than TNA.
I mean the options are limited to WGN which has limited availability, FSN who they bad mouthed, Speed who has never aired that related pilot, MTV which is also Viacom owned like Spike and put LLUSA on at 10AM, and FX which is going to be UFC central.
I just don't see many options if Spike ever got pissed off with them and cut their financial losses with the program